You would look to possible problems in one situation but not the other? Rationalize it any way you want. I really don't care.
Once again you put words in my mouth, and do it badly. Rationalize that any way you want.
Voter impersonation has been investigated thoroughly. It barely happens, for exactly the reason I describe.
Think about it: How many votes would you be physically capable of casting in a day? You'd have to drive to different voting stations, because repeated votes at the same station would amplify your risk of being caught. You'd have to wait in line at each. A dozen votes? Fifteen if you're lucky? You'd also have to have a plausible identity prepared for each: you'd have to know the name of a registered voter. You could just pick random names, but it's better to have a name you know wont cast a vote. (because if both the real person and you show up, that is another flag that increases your risk)
All this effort, and I cast a handful of extra votes for Hillary Clinton. If I'm not in a swing state, the benefit is literally zero. If I'm in a swing state... have I affected anything?
Each fraudulent vote can get me up to five years in federal prison.
That's an awfully high risk, with virtually no gain. And in the utterly remote instance where I actually do swing the election, the benefits go to
Hillary Clinton. I don't get elected, she does. I don't gain power and wealth, she does. Maybe I made a deal with her campaign... for what? Nobody is giving me a cabinet position in exchange for my ten or twelve extra votes. No juicy government contract is coming my way, it's going to 3M in exchange for their millions in campaign funding.
And to actually swing an election, I'd need to find literally thousands, probably tens or even hundreds of thousands of people willing to take this risk. Even a down-to-the vote election like 2000 would require a lot of people to have cast votes for Gore in Florida... and successfully predicting that Florida would end up being the breaking point.
In 2012, Obama beat Romney by
five million votes. Imagine the enormous effort that would have been required to swing it to Romney. As the size of the conspiracy grows, the odds of getting caught multiply.